Patent GB-561641-A (GB)
Title: Improvements relating to emulsions particularly adapted for fabric decoration
IPC: D06P1/44
Filed: 1941-05-26
Abstract: A stable pigmented three-phase emulsion, which may have a continuous oily phase or a continuous aqueous phase and is specially suitable for textile dyeing and printing, comprises an aqueous phase, a phase consisting of a pigmented resin-organic solvent aggregate and a phase consisting of an organic composition not fully miscible with such aggregate and contains an emulsifying agent.  The aqueous phase preferably constitutes at least 20 per cent by weight of the emulsion, the said composition is advantageously a thin lacquer containing less than 10 per cent by weight of non-volatile ingredients and the said resin is advantageously a synthetic resin convertible by heat to a form which is insoluble in washing or dry cleaning agents.  In examples: (1) an aqueous suspension of Lithosol blue GL is mixed into a solution of soya oil fatty acid-modified glyceryl phthalate resin in toluene, pine oil and hydrogenated petroleum to obtain a two-phase water-in-oil emulsion, which is converted into a threephase emulsion by an addition of aliphatic hydrocarbons; (2) an unpigmented two-phase water-in-oil emulsion, obtained by mixing an aqueous solution containing sodium chloride, sulphonated tannin and acetic acid into a solution of a drying oil-modified glyceryl phthalate resin in hydrogenated petroleum and pine oil containing rubber, is added to the two-phase emulsion in (1); (3) the unpigmented two-phase emulsion in (2) is added to a two-phase water-in-oil emulsion made by mixing an aqueous suspension of Benzidine yellow into a solution of a urea-formaldehyde resin in butanol, xylene and hydrogenated petroleum containing ethyl cellulose; (4) an unpigmented two-phase water-in-oil emulsion containing ethyl cellulose, pine oil, hydrogenated petroleum and water is added to the two-phase pigmented water-in-oil emulsion in (3) or (5); (5) the unpigmented two-phase water-in-oil emulsion in (2) is added to a two-phase water-in-oil pigmented emulsion containing a urea-formaldehyde resin as in (3), a glyceryl phthalate resin as in 91), pine oil, hydrogenated petroleum, Monastral fast green GS and water; (6) the unpigmented two-phase water-in-oil emulsion in (2) or (4) is added to a two-phase water-in-oil pigmented emulsion made by mixing an aqueous suspension of Benzidine yellow into a solution of a melamine-formaldehyde resin and the glyceryl phthalate resin of (2) in butanol, xylene and hydrogenated petroleum; (7) a two-phase oil-in-water emulsion is first made by emulsifying a lacquer, obtained by adding a urea-formaldehyde resin solution as in 93), a glyceryl phthalate resin solution as in (1), pine oil and xylene to a dispersion of carbon black in a mixture of xylene with a glyceryl phthalate resin solution as in (1), into a mixture of sodium lauryl sulphate, bentonite and water, and this two-phase emulsion is incorporated with a two-phase oil-in-water emulsion containing hydrogenated petroleum, oleic acid, triethanolamine and water to obtain a three-phase emulsion having a continuous aqueous phase. Specification 523,090 is referred to.